There is a huge number (1.5 x 1084) of possible genetic codes. however, the genetic code used by all known forms of life is nearly universal. this suggests that a) all dna patterns are identical. b) rna is the same in all life forms. c) life evolved from a single source. d) genetic information is often lost. c

Describe the change in phase and temperature as water moves from the oceans to the atmosphere and then returns to earth again as rain. a) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature decreases b) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature increases c) evaporation : temperature decreases; condensation : temperature decreases; precipitation (rain) : temperature decreases d) evaporation : temperature increases; condensation : temperature increases; precipitation (rain) : temperature decreases